Dual Temperature Exchange The GS Process for Deuterium Enrichment

2 Dual Temperature Exchange The GS Process for Deuterium Enrichment 

To avoid the high cost of chemical reflux the dual temperature H2S/H20 exchange was independently suggested by Geib (1946) and Spevack (1957) (GS). The method exploits the fact that the equilibrium constant for isotope exchange is temperature dependent. The scheme is illustrated in Fig. 8.13. To carry out the exchange 

The large industrial scale GS plant (lOOkgh-1, 700t year-1, 99.8% D20 product) operated by Ontario Hydro at Bruce Ontario for more than 20 years was 

We close discussion of the GS process with the comment that it is dangerous. A GS plant requires a very large inventory of highly toxic H2S employed at elevated temperature and pressure in a corrosive environment. The safety of operating personnel and of the population in the area surrounding the plant is a major concern. 

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